Unrestricted File Upload in File Management System PHP

Executive Summary

This vulnerability is an unrestricted file upload flaw in the file-management-system-php application. The save_files function in admin_class.php does not validate file types, allowing attackers to upload malicious files like PHP web shells. These files are stored in a publicly accessible directory with predictable names, enabling remote code execution without authentication.

Useful 0 Not Useful 0

Detection Guidance

Check for unexpected files in the assets/uploads/ directory of the file management system. Look for recently uploaded PHP files or files with unusual extensions. Inspect network traffic for POST requests to admin_class.php or ajax.php with file upload parameters.

Useful 0 Not Useful 0

Impact Analysis

An attacker could exploit this to upload and execute arbitrary code on your server, gaining full control. This includes accessing sensitive files, interacting with databases, and running system commands if PHP functions like system() are enabled. The attack requires no authentication and can be launched remotely.

Useful 0 Not Useful 0

Compliance Impact

This vulnerability likely violates compliance requirements for data protection and security. GDPR mandates strict access controls and breach notifications, while HIPAA requires safeguards against unauthorized access. A successful exploit could lead to data breaches, resulting in legal penalties and reputational damage.

Useful 0 Not Useful 0

Mitigation Strategies

Disable file uploads if not required. If uploads are necessary, implement strict file type validation, allowlists for extensions, MIME type checks, and store files outside the web root. Monitor for unauthorized file uploads and restrict access to admin_class.php and ajax.php.

Useful 0 Not Useful 0